ISSN: 2277-9655 [Kher * et al., 6(9): September, 2017] Impact Factor: 4.116 IC™ Value: 3.00 CODEN: IJESS7 http: // www.ijesrt.com© International Journal of Engineering Sciences & Research Technology [342] IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY BREAKING CAPTCHA USING ARTIFICIAL INTELLIGENCE Vaidehi Kher *1 , Mayank Yadav 2 , Shivashish Naramdeo 3 , Varun Deolase 4 & Sarthak Gupta 5 1,2,3,4&5 Computer Science Engineering, Acropolis Institute Of Technology And Research, Indore, (M.P) India DOI: 10.5281/zenodo.892060 ABSTRACT The science of making computers humanly to an extent in which it is capable of decision making on its own, visual cognizance, speech recognition, etc. is artificial intelligence. In a very less time span, this field has impacted several sectors of life such as medical, engineering, business, forecasting, etc. "Completely Automated Public Turing Test to Tell Computers and Humans Apart" acronyms to CAPTCHA is a test to differentiate humans from normal robots. A robot is not capable of cracking a CAPTCHA. In this paper we are focusing on how an artificial intelligence robot can solve a CAPTCHA. It is not a big deal to crack a CAPTCHA but it is a small step to a big thing i.e. consciousness in A KEYWORDS: Artificial Intelligence, consciousness, neural networks, CAPTCHA, fussy logics. I. INTRODUCTION Completely Automated Public Turing Test to Tell Computers and Humans Apart (CAPTCHA) came into existence in 1997. CAPTCHA is a collection of distorted or randomly stretched characters or numbers sometimes with a noisy image in the background which user is supposed to type in a box mentioned. It is also known as Reverse Turing test as it is a test supervised by a computer. CAPTCHA is a Turing test which is fully automated which requires minimal human attention and involvement to administer, which is also cost efficient and reliable. CAPTCHA’s are mainly used by websites whic h has online polls and registration forms involved. EX: Gmail, Yahoo, etc. Image 1 (captcha in use) There are basically two types of CAPTCHA, namely: (1) Audio CAPTCHA (2) visual CAPTCHA. Audio CAPTCHA is a type of visual CAPTCHA which also reads the characters out loud to help the physically disabled person or in case the character is hard to recognize. CAPTCHA has many applications in security, few of which are: a. Email services Email service providers like Microsoft, rediffmail, etc. who provide free email services have been facing bots attack almost every second. To overcome this problem CAPTCHA test is imposed. b. Spams CAPTCHA allows mails from computers who have human at the back end. Hence it keeps a check on spams.